Curtain opening and closing device

Abstract

The present invention belongs to the technical field of smart home, and particularly relates to a curtain opening and closing device, which is installed on a guide member, on which a curtain is movably provided, and the curtain opening and closing device is used to drive the curtain to move along the guide member; the curtain opening and closing device comprises a host and a connecting mechanism; at least one connecting mechanism is provided on opposite sides of the host and is used to drive the connecting mechanism to move along the guide member; the connecting mechanism comprises a bracket, a first roller and a second roller; the first end of the bracket is inserted into the host, and the first roller and the second roller are rotatably connected to the opposite sides of the second end of the bracket respectively; the first roller and the second roller are used to be rollingly connected to the outer wall of the guide member; the second roller can move along the bracket in a direction away from the first roller, and the second end of the bracket is also provided with a reset member for driving the second roller to move along the bracket in a direction close to the first roller, so that the second roller returns to an initial position.

Description

Technical Field

[0001] The invention belongs to the technical field of smart home, and in particular relates to a curtain opening and closing device. Background Art

[0002] The conventional curtain opening and closing device is installed on the curtain guide to drive the curtain to open and close automatically. The curtain opening and closing device has a connecting mechanism, which is used to connect the curtain guide. The existing curtain opening and closing device usually uses a screw rod assembly, a rack assembly, etc. to connect the mechanism position so that the connecting mechanism is installed on the curtain guide. However, in the above installation method, when the connecting mechanism is installed on the curtain guide, the operation is relatively complicated and the installation is time-consuming. Summary of the invention

[0003] The object of the present invention is to provide a curtain opening and closing device, aiming to solve the technical problem that when the connecting mechanism of the curtain opening and closing device is installed on the curtain guide member in the prior art, the operation is relatively complicated and the installation is time-consuming.

[0004] To achieve the above-mentioned purpose, an embodiment of the present invention provides a curtain opening and closing device, which is installed on a guide member, on which a curtain is movably provided, and the curtain opening and closing device is used to drive the curtain to move along the guide member; the curtain opening and closing device includes a host and a connecting mechanism; at least one connecting mechanism is provided on two opposite sides of the host and is used to drive the connecting mechanism to move along the guide member;

[0005] The connecting mechanism includes a bracket, a first roller and a second roller; the first end of the bracket is inserted into the main unit, and the first roller and the second roller are rotatably connected to the opposite sides of the second end of the bracket respectively; the first roller and the second roller are used for rolling connection with the outer wall of the guide member; the second roller can move along the bracket in a direction away from the first roller, and the second end of the bracket is also provided with a reset member for driving the second roller to move along the bracket in a direction close to the first roller.

[0006] Optionally, a mounting portion extends from the second end of the bracket, a first supporting portion extends upward from the mounting portion, and the first roller is rotatably connected to the first supporting portion; a movable seat is slidably connected to the mounting portion, and the second roller is rotatably connected to the movable seat; the first roller and the second roller are arranged opposite to each other, and there is a gap between the first roller and the second roller; the reset member is installed between the movable seat and the mounting portion.

[0007] Optionally, the mounting portion is provided with a horizontally arranged accommodating cavity; the movable seat includes a movable body; the movable body is provided with a second supporting portion extending upward, the second roller is rotatably connected to the second supporting portion, and the movable body is slidably connected to the mounting portion; the movable body is provided with a pushing portion, and the pushing portion is movably accommodated in the accommodating cavity; the reset member is a first elastic member, the first elastic member is installed in the accommodating cavity, and the two ends of the first elastic member are respectively abutted against the inner wall of the accommodating cavity and the pushing portion.

[0008] Optionally, a first guide rod is provided between the push portion and the movable seat, the mounting portion is provided with a horizontally arranged guide hole, and the first guide rod is movably inserted into the guide hole.

[0009] Optionally, the outer side wall of the mounting portion is provided with a second guide rod, the movable body is provided with a guide groove, and the second guide rod is movably inserted into the guide groove.

[0010] Optionally, the mobile body is further provided with a pushing portion, and the pushing portion is located outside the mounting portion.

[0011] Optionally, the mounting portion is provided with a limiting notch at an end away from the first roller, and when the second supporting portion abuts against a side wall of the limiting notch, the second roller is limited from continuing to move in a direction close to the first roller.

[0012] Optionally, an outer wall of the mounting portion is provided with a mounting opening connected to the accommodating cavity, and the mounting opening is adapted to be covered with a cover plate.

[0013] Optionally, at least one mounting hole is provided at the top of two opposite sides of the shell, and the mounting hole is vertically arranged; a vertical connecting rod extends from the first end of the bracket, and the connecting rod is adapted to be inserted into the mounting hole; the middle diameter of the mounting hole is expanded to form an accommodating cavity, and the accommodating cavity is provided with a second elastic member, and the two ends of the second elastic member are respectively connected to the accommodating cavity and the bracket, so that the bracket can adjust its position in the vertical direction relative to the shell.

[0014] Optionally, the main machine includes a shell, a driving member and a transmission wheel; the transmission wheel is installed on the shell, the transmission wheel is used to be close to the outer wall of the guide member, and the driving member is arranged in the shell and is used to drive the transmission wheel to rotate.

[0015] Compared with the prior art, the curtain opening and closing device provided by the embodiment of the present invention has one of the following technical effects:

[0016] During installation, an external force pushes the second roller to move along the bracket in a direction away from the first roller, increasing the distance between the first roller and the second roller, making the distance between the first roller and the second roller greater than the width of the guide member, so that the first roller and the second roller can cross the width of the guide member; when the external force is removed, the reset member drives the second roller to move along the bracket in a direction close to the first roller, so that the second roller returns to its initial position, and the distance between the first roller and the second roller is reduced, so that the first roller and the second roller are rollingly connected to the outer wall of the guide member, and the connecting mechanism is completed and installed on the curtain guide member, which is simple to operate and greatly reduces the installation time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 It is a structural schematic diagram of the curtain opening and closing device of the present invention installed on a guide member.

[0019] Figure 2 It is a schematic structural diagram of the curtain opening and closing device of the present invention.

[0020] Figure 3 It is a first cross-sectional view of the curtain opening and closing device of the present invention.

[0021] Figure 4 It is a structural schematic diagram of the connecting mechanism of the present invention.

[0022] Figure 5 It is a cross-sectional view of the connecting mechanism of the present invention.

[0023] Figure 6 It is an exploded schematic diagram of the connection mechanism of the present invention.

[0024] Figure 7 It is an exploded schematic diagram of the mobile base of the present invention.

[0025] Figure 8 It is a second cross-sectional view of the curtain opening and closing device of the present invention.

[0026] Fig. 9 It is an exploded schematic diagram of the curtain opening and closing device of the present invention.

[0027] Fig.10 This is a diagram of the first use state of the curtain opening and closing device of the present invention.

[0028] Fig.11 This is a diagram of the curtain opening and closing device of the present invention in a second use state.

[0029] Among them, the reference numerals in the figure are:

[0030] Guide member 100, groove 101, curtain 110, host 200, shell 210, inner cavity 211, base 212, groove 212a, connecting seat 213, buckle 213a, mounting hole 214, battery 215, circuit board 216, accommodating cavity 217, driving member 220, mounting seat 221, transmission wheel 230, transmission wheel bearing 231, connecting mechanism 300, bracket 310, mounting portion 311, mounting port 311a, cover plate 311b, first support portion 31 2, accommodating cavity 313, guide hole 314, limiting platform 315, connecting rod 316, elastic member 317, second guide rod 318, limiting notch 319, first roller 320, second roller 330, moving seat 340, moving body 341, second supporting portion 342, snap-fit ​​groove 342a, pushing portion 343, connecting portion 343a, first guide rod 344, snap-fit ​​block 344a, guide groove 345, pushing portion 346, pressing groove 346a, reset member 350. DETAILED DESCRIPTION

[0031] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0032] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0034] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0035] In one embodiment of the present invention, Figure 1-Figure 2 As shown, a curtain opening and closing device is provided.

[0036] The guide member 100 is mounted thereon, and a curtain 110 is movably mounted thereon. The curtain opening and closing device is used to drive the curtain 110 to move along the guide member 100 to realize automatic opening and closing of the curtain 110 .

[0037] Reference Figure 1 and Figure 2 The curtain opening and closing device includes a host 200 and a connecting mechanism 300.

[0038] At least one connecting mechanism 300 is disposed on opposite sides of the host 200, and the connecting mechanism 300 is connected to the guide member 100. The host 200 is used to drive the connecting mechanism 300 to move along the guide member 100 and push the curtain 110 installed on the guide member 100, so that the curtain 110 moves along the guide member 100.

[0039] In a specific embodiment, refer to Figure 1 and Figure 2 A plurality of through holes or hanging rings (not shown) are provided on one side of the curtain 110, and the guide member 100 is provided with through holes or hanging rings so that the curtain 110 is hung on the guide member 100. The connecting mechanism 300 is connected to the guide member 100 and is located between two through holes or two hanging rings. When the host 200 drives the connecting mechanism 300 to move along the guide member 100, the connecting mechanism 300 moves along the guide member 100 and pushes the curtain 110 to move along the guide member 100, thereby realizing the automatic opening and closing of the curtain 110.

[0040] It can be understood that the guide member 100 can be a guide rail, a guide rod or other curtain supporting structures, and the guide member 100 can be an integrated structure or a spliced ​​structure.

[0041] Reference Figure 2 and Figure 4The connection mechanism 300 includes a bracket 310, a first roller 320 and a second roller 330. The first end of the bracket 310 is inserted into the host 200, and the first roller 320 and the second roller 330 are rotatably connected to opposite sides of the second end of the bracket 310. Preferably, the first roller 320 and the second roller 330 are coaxially arranged.

[0042] Reference Figure 1 and Figure 2 The first roller 320 and the second roller 330 are both used for rolling connection with the outer wall of the guide member 100, so that the connection mechanism 300 is installed on the guide member 100. The host 200 drives the connection mechanism 300 to move along the guide member 100 and push the curtain 110 installed on the guide member 100, so that the curtain 110 moves along the guide member 100, and the curtain 110 is automatically opened and closed.

[0043] Specifically, refer to Figure 2 and Figure 5 The second roller 330 can move along the bracket 310 in a direction away from the first roller 320, and the second end of the bracket 310 is also provided with a reset member 350 for driving the second roller 330 to move along the bracket 210 in a direction close to the first roller 320, so that the second roller 330 returns to the initial position.

[0044] Preferably, the first roller 320 and the second roller 330 are arranged opposite to and coaxially, the axes of the first roller 320 and the second roller 330 are parallel to the horizontal direction, and there is a gap between the first roller 320 and the second roller 330 to avoid friction between the two rollers, and also to reserve an installation position for the guide member 100.

[0045] When installing, refer to Figure 2 and Figure 5 , the external force pushes the second roller 330 to move along the bracket 310 in a direction away from the first roller 320, increasing the distance between the first roller 320 and the second roller 330, so that the distance between the first roller 320 and the second roller 330 is greater than the width of the guide member 100, so that the first roller 320 and the second roller 330 can cross the width of the guide member 100. When the external force is removed, the reset member 350 drives the second roller 330 to move along the bracket 310 in a direction close to the first roller 320, so that the second roller 330 returns to the initial position, and the distance between the first roller 320 and the second roller 330 is reduced, so that the first roller 320 and the second roller 330 are rollingly connected to the outer wall of the guide member 100, and the connection mechanism 200 is installed on the curtain guide member 100, which is simple to operate and greatly reduces the installation time.

[0046] In a specific embodiment, refer to Fig.10When the guide member 100 is set as an I-shaped rod, the first roller 320 and the second roller 330 are respectively installed in the grooves 101 on the opposite sides of the I-shaped rod, and the first roller 320 and the second roller 330 are respectively connected to the bottom surfaces of the two grooves 101 by rolling, and the side ends of the first roller 320 and the second roller 330 that are close to each other are respectively close to the side walls of the two grooves 101. It should be noted that the closeness mentioned here means that there will be a certain gap between the first roller 320 and the second roller 330 and the side walls of the two grooves 101, so as to avoid the resistance caused by the friction between the rollers and the side walls during the movement, avoid noise, and reduce the wear of the rollers, so that the curtain opening and closing device can move stably along the guide member 100. Driven by the host 200, the first roller 320 and the second roller 330 roll along the two grooves 101 respectively.

[0047] Also, in other embodiments, refer to Fig.11 When the guide member 100 can also be set as a square rod, the first roller 320 and the second roller 330 are installed on the upper end of the square rod, so that the first roller 320 and the second roller 330 are rollingly connected with the upper end surface of the square rod. Driven by the host 200, the first roller 320 and the second roller 330 roll along the upper end surface of the square rod respectively.

[0048] In another embodiment of the present invention, referring to Figure 2 and Figure 3 The main unit 200 of the curtain opening and closing device includes a housing 210, a driving member 220 and a transmission wheel 230. The transmission wheel 230 is mounted on the housing 210, and the transmission wheel 230 is used to be close to the outer wall of the guide member 100. The driving member 220 is arranged in the housing 210 and is used to drive the transmission wheel 230 to rotate, so that the transmission wheel 230 rolls along the guide member 100.

[0049] It is understandable that when the guide member 100 is cylindrical, the transmission wheel 230 is closely attached to the circumferential side wall of the guide member 100. When the cross section of the guide member 100 is square, the transmission wheel 230 is closely attached to the bottom wall of the guide member 100.

[0050] In a specific embodiment, refer to Figure 2 and Figure 3 The shell 210 has an inner cavity 211 , the transmission wheel 230 is rotatably connected to the shell 210 and at least partially exposed outside the inner cavity 211 , and the portion of the transmission wheel 230 exposed outside the inner cavity is closely attached to the outer wall of the guide member 100 .

[0051] Reference Figure 1 and Figure 3There is friction between the transmission wheel 230 and the guide member 100. Under the drive of the driving member 220, the transmission wheel 230 can move along the guide member 100. The host 200 drives the connecting mechanism 300 to move along the guide member 100 and pushes the curtain 110 installed on the guide member 100 to realize the electric opening and closing of the curtain 110. There is no need to open and close the curtain manually, and the operation is convenient.

[0052] In a specific embodiment, refer to Figure 2 and Figure 3 The driving member 220 is a motor, and the driving member 220 is coaxially arranged with the transmission wheel 230, so as to facilitate the smooth movement of the transmission wheel 230 and make full use of the space. The motor 220 is fixed to the inner cavity 211 through the mounting seat 221, and the transmission wheel 230 is a hollow wheel. The transmission wheel 230 is sleeved on the motor 220 and is rotatably connected to the motor 220 through the transmission wheel bearing 231. The rotating shaft of the motor 220 is connected to one end of the transmission wheel 230 and drives the transmission wheel 230 to rotate.

[0053] Furthermore, in other embodiments, the driving member 220 may also be configured as a rotary cylinder.

[0054] In another embodiment of the present invention, referring to Figure 4 and Figure 6 The second end of the bracket 310 of the curtain opening and closing device extends with a horizontally arranged mounting portion 311, and the mounting portion 311 extends upward with a vertically arranged first supporting portion 312, and the first roller 320 is rotatably connected to the first supporting portion 312 via a rotating shaft. A movable seat 340 is slidably connected to the mounting portion 311, and the second roller 330 is rotatably connected to the movable seat 340 via a rotating shaft. The reset member 350 is installed between the movable seat 340 and the mounting portion 311 to drive the second roller 330 to move along the bracket 210 in a direction close to the first roller 320.

[0055] In the specific implementation, refer to Figure 4 and Figure 6 The mounting portion 311 is provided with a horizontally arranged accommodating cavity 313, and the accommodating cavity 313 has an opening in a part of the mounting portion 311. The movable seat 340 includes a horizontally arranged movable body 341; a vertically arranged second supporting portion 342 extends upward from the end of the movable body 341, the second roller 330 is rotatably connected to the second supporting portion 342, and the movable body 341 is slidably connected to the mounting portion 311. The movable body 341 is provided with a resisting portion 343, and the resisting portion 343 is movably accommodated in the accommodating cavity 313 and close to the opening.

[0056] It can be understood that the first roller 320 and the second roller 330 are rotatably connected to the side ends of the first support portion 312 and the second support portion 342 that are close to each other.

[0057] In the specific implementation, refer to Figure 4 , Figure 5 and Figure 6 , the reset member 350 is a first elastic member, which is installed in the accommodating cavity 313, and the two ends of the first elastic member are respectively in contact with the inner wall of the accommodating cavity 313 and the push portion 343. The external force pushes the movable seat 340 to drive the second roller 330 to move along the bracket 310 in a direction away from the first roller 320, and the push portion 343 moves along the accommodating cavity 313 and compresses the first elastic member. When the external force is removed, the first elastic member elastically resets, pushing the push portion 343 to reset, thereby driving the second roller 330 on the movable seat 340 to move along the bracket 310 in a direction close to the first roller 320, so that the second roller 330 returns to the initial position.

[0058] Preferably, the first elastic member is a spring with a simple structure and suitable elastic force. The diameter of the push portion 343 close to the spring is reduced to form a connecting portion 343a, and one end of the spring is sleeved on the connecting portion 343a to ensure that the spring is stably connected to the push portion 343.

[0059] In another embodiment of the present invention, referring to Figure 6 and Figure 7 A first guide rod 344 is provided between the push portion 343 of the curtain opening and closing device and the second support portion 342 of the movable seat 340, and the first guide rod 344 is provided in parallel with the movable body 341. The mounting portion 311 is provided with a horizontally arranged guide hole 314, the guide hole 314 is located above the accommodating cavity 313, and an air avoidance groove is connected between the guide hole 314 and the accommodating cavity 313, the first guide rod 344 is movably plugged into the guide hole 314, and the upper end of the push portion 343 is connected to the end of the first guide rod 344.

[0060] When the moving body 341 slides relative to the mounting portion 311 , the first guide rod 344 is matched and connected with the guide hole 314 to guide the moving body 341 to move stably along the guide hole 314 .

[0061] In a specific embodiment, the pushing parts 343 and 343 are arranged in an “L” shape, and the pushing parts 343 and 343 are an integral structure, and the structure is firm.

[0062] In some embodiments, reference Figure 6 and Figure 7A clamping block 344a is provided at one end of the first guide rod 344 close to the second support portion 342, and a clamping groove 342a is provided at the side end of the second support portion 342. The clamping block 344a is adapted to be clamped in the clamping groove 342a, so that the first guide rod 344 is fixedly connected to the first support portion 312, thereby simplifying the structure of the movable seat 340 and facilitating processing.

[0063] In other embodiments, the first guide rod 344 and the first support portion 312 are an integrated structure with a firm structure.

[0064] Further, refer to Figure 6 and Figure 7 The outer wall of the mounting portion 311 is provided with a second guide rod 318, which is arranged parallel to the guide hole 314. The movable body 341 is provided with a guide groove 345, which is arranged parallel to the first guide rod 344, and the second guide rod 318 is movably inserted into the guide groove 345.

[0065] When the moving body 341 slides relative to the mounting portion 311 , the second guide rod 318 is connected and matched with the guide groove 345 to guide the moving body 341 to move stably along the guide hole 314 .

[0066] Specifically, the cross-sections of the second guide rod 318 and the guide groove 345 are both “L”-shaped.

[0067] In another embodiment of the present invention, referring to Figure 6 and Figure 7 The end of the movable body 341 of the curtain opening and closing device away from the second supporting part 342 is further provided with a pushing part 346, which is vertically arranged with the movable body 341 and located outside the mounting part 311. The pushing part 346 is arranged so that the user can push the pushing part 346 to drive the movable body 341 to slide relative to the mounting part 311, thereby increasing the distance between the first roller 320 and the second roller 330 and facilitating installation.

[0068] Furthermore, a pressing groove 346 a adapted to be pressed by a human finger is provided at one end of the pushing portion 346 away from the moving body 341 , so that the user can press the pushing portion 346 conveniently.

[0069] In another embodiment of the present invention, referring to Figure 5 and Figure 6The mounting portion 311 of the curtain opening and closing device is provided with a limiting notch 319 at one end away from the first roller 320, and the first elastic member elastically pushes the second roller 330 to move toward the first roller 320. When the second supporting portion 342 abuts against the side wall of the limiting notch 319, the side wall of the limiting notch 319 plays a limiting role, preventing the second roller 330 from continuing to approach the first roller 320, so that there is a suitable distance between the second roller 330 and the first roller 320, and the second roller 330 is in the initial position at this time.

[0070] In another embodiment of the present invention, referring to Figure 6 The outer wall of the mounting portion 311 of the curtain opening and closing device is provided with a mounting opening 311a connected to the accommodating cavity 313, and the mounting opening 311a is adapted to be covered with a cover plate 311b. The first elastic member is mounted in the accommodating cavity 313 from the mounting opening 311a, and the mounting is convenient. The cover plate 311b is detachably connected to the mounting opening 311a by a buckle.

[0071] In other embodiments, the cover plate 311 b may also be connected to the mounting opening 311 a by screws.

[0072] In another embodiment of the present invention, referring to Figure 8 and Fig. 9 At least one mounting hole 214 is provided at the tops of two opposite sides of the housing 210 of the curtain opening and closing device, and the mounting hole 214 is vertically arranged.

[0073] Reference Figure 8 and Fig. 9 A vertical connecting rod 316 extends from the first end of the bracket 310, and the connecting rod 316 is adapted to be inserted into the mounting hole 214. The middle diameter of the mounting hole 214 is expanded to form an accommodating cavity 217, and the accommodating cavity 217 is provided with a second elastic member 317, and the two ends of the second elastic member 317 are respectively connected to the accommodating cavity 217 and the connecting rod of the bracket 310, so that the bracket 310 can adjust its position relative to the housing 210 in the vertical direction.

[0074] Therefore, by pulling the bracket 310 upwards and compressing the second elastic member 317, the longitudinal distance between the first roller 320 and the second roller 330 and the transmission wheel 230 can be adjusted, so that the connecting mechanism 300 can be connected to the guide members 100 at different heights. At the same time, the restoring elastic force of the second elastic member 317 can push the first roller 320 and the second roller 330 to be close to the outer wall of the guide member 100, and make the transmission wheel 230 close to the bottom wall of the guide member 100, ensuring that there is sufficient friction between the transmission wheel 230 and the guide member 100.

[0075] Further, refer to Figure 8 and Fig. 9, the second elastic member 317 is a spring with a simple structure and appropriate elastic force. A limit platform 315 is provided at the lower end of the connecting rod, and the lower end of the limit platform 315 can abut against the bottom inner wall of the accommodating chamber 217. The spring is sleeved on the connecting rod 316, and the two ends of the spring abut against the upper end of the limit platform 315 and the top inner wall of the accommodating chamber 217 respectively. When the limit platform 315 abuts against the bottom inner wall of the accommodating chamber 217, the bracket 310 is in the initial position (the lowest position), and the bracket 310 is pulled vertically upward, and the limit platform 315 pushes and compresses the spring, so that the bracket 310 can adjust its position relative to the housing 210 in the vertical direction.

[0076] In another embodiment of the present invention, referring to Fig. 9 The housing 210 of the curtain opening and closing device includes a base 212 and connecting bases 213 detachably connected to opposite sides of the base 212 .

[0077] Reference Figure 8 and Fig. 9 The inner cavity 211 is provided on the base 212, and at least one connecting mechanism 300 is provided on the connecting seat 213. The connecting seat 213 is provided with a mounting hole 214, and the connecting rod 316 can be movably plugged into the mounting hole 214. Through this arrangement, when the first roller 320 and the second roller 330 are damaged after long-term use, only the connecting mechanism 300 needs to be replaced, and the housing 210 does not need to be replaced as a whole, which is conducive to resource reuse.

[0078] Specifically, refer to Fig. 9 The connection base 213 is provided with a buckle 213a, and the base 212 is provided with a groove 212a (not shown), and the buckle 213a can be clamped in the groove 212a. In other embodiments, the connection base 213 and the base 212 can also be connected by fasteners such as threaded connection or screws.

[0079] Preferably, the connection seat 213 is connected to the left and right sides of the base 212 so that the shell 210 has a roughly left-right symmetrical structure, which is beneficial to the stable operation of the host 200 and reduces the shaking caused by the unstable center of gravity.

[0080] In other embodiments, the connection base 213 may also be connected to one side of the base 212 .

[0081] In another embodiment of the present invention, referring to Figure 3 A battery 215 is also provided in the inner cavity 211 of the curtain opening and closing device. The battery 215 is electrically connected to the driving member 220 to provide electrical energy to the driving member 220.

[0082] Among them, refer to Figure 3A circuit board 216 is also provided in the inner cavity 211, and the battery 215 and the driving member 220 are both electrically connected to the circuit board 216. In this embodiment, the circuit board 216 can be provided with an integrated chip according to actual production needs. Since the circuit board 216 is a mature technology in the prior art, how the circuit board 216 controls the operation of the curtain opening and closing device should be well known and mastered by those skilled in the art, so the control principle of the present invention will not be described in detail.

[0083] The rest of this embodiment is the same as the first embodiment. The features not explained in this embodiment are all based on the explanations in the first embodiment and will not be described in detail here.

[0084] The above content is a further detailed description of the present invention in combination with specific preferred implementation methods, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, without departing from the concept of the present invention, its architecture can be flexible and can derive a series of products. Just making a few simple deductions or substitutions should be regarded as belonging to the scope of patent protection of the present invention determined by the submitted claims.

Claims

1. A curtain opening and closing device, mounted on a guide member, on which a curtain is movably provided, and used to drive the curtain to move along the guide member; characterized in that: The curtain opening and closing device comprises a main unit and a connecting mechanism; at least one connecting mechanism is provided on two opposite sides of the main unit and is used to drive the connecting mechanism to move along the guide member; The connecting mechanism comprises a bracket, a first roller and a second roller; the first end of the bracket is inserted into the host, and the first roller and the second roller are rotatably connected to opposite sides of the second end of the bracket respectively; the first roller and the second roller are used to be connected to the outer wall of the guide member in a rolling manner; the second roller can move in a direction away from the first roller, and the second end of the bracket is also provided with a reset member for driving the second roller to move along the bracket in a direction close to the first roller; A mounting portion extends from the second end of the bracket, a first supporting portion extends upward from the mounting portion, and the first roller is rotatably connected to the first supporting portion; a moving seat is slidably connected to the mounting portion, and the second roller is rotatably connected to the moving seat; The mobile seat comprises a mobile body; the mobile body is upwardly extended with a second support portion, and the second roller is rotatably connected to the second support portion; the mobile body is also provided with a pushing portion, and the pushing portion is located outside the mounting portion, and is used for facilitating a user to push the pushing portion to drive the mobile body to slide relative to the mounting portion, thereby increasing the distance between the first roller and the second roller; The host comprises a driving member; the curtain opening and closing device is also provided with a battery, and the battery is electrically connected to the driving member to provide electrical energy to the driving member.

2. The curtain opening and closing device according to claim 1, characterized in that: The first roller and the second roller are arranged opposite to each other, and there is a gap between the first roller and the second roller; the reset member is installed between the moving seat and the installation part.

3. The curtain opening and closing device according to claim 2, characterized in that: The mounting portion is provided with a horizontally arranged accommodating cavity; the movable body is slidably connected to the mounting portion; the movable body is provided with a push portion, and the push portion is movably accommodated in the accommodating cavity; the reset member is a first elastic member, the first elastic member is installed in the accommodating cavity, and the two ends of the first elastic member are respectively in contact with the inner wall of the accommodating cavity and the push portion.

4. The curtain opening and closing device according to claim 3, characterized in that: A first guide rod is arranged between the push portion and the movable seat, the mounting portion is provided with a horizontally arranged guide hole, and the first guide rod is movably inserted into the guide hole.

5. The curtain opening and closing device according to claim 3, characterized in that: The outer side wall of the mounting portion is provided with a second guide rod, the movable body is provided with a guide groove, and the second guide rod is movably inserted into the guide groove.

6. The curtain opening and closing device according to claim 3, characterized in that: The mounting portion is provided with a limiting notch at one end away from the first roller, and when the second supporting portion abuts against a side wall of the limiting notch, the second roller is limited from continuing to move toward the direction approaching the first roller.

7. The curtain opening and closing device according to claim 3, characterized in that: An outer wall of the mounting portion is provided with a mounting opening communicating with the accommodating cavity, and the mounting opening is adapted to be covered with a cover plate.

8. The curtain opening and closing device according to any one of claims 1 to 7, characterized in that: At least one mounting hole is provided at the top of two opposite sides of the shell, and the mounting hole is vertically arranged; a vertical connecting rod extends from the first end of the bracket, and the connecting rod is adapted to be inserted into the mounting hole; the middle diameter of the mounting hole is expanded to form an accommodating cavity, and the accommodating cavity is provided with a second elastic member, and the two ends of the second elastic member are respectively connected to the accommodating cavity and the bracket, so that the bracket can adjust its position in the vertical direction relative to the shell.

9. The curtain opening and closing device according to any one of claims 1 to 7, characterized in that: The main machine includes a shell and a transmission wheel; the transmission wheel is installed in the shell, the transmission wheel is used to be close to the outer wall of the guide member, and the driving member is arranged in the shell and is used to drive the transmission wheel to rotate.

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